RUNOUT ADJUSTABLE RA HOLDER
NEW BABY CHUCK CLAMPING RANGE: ø.5-20mm
COOLANT
R
SPINDLE SYSTEM DUAL CONTACT
THROUGH
x (Cutting Tool Length)
x (Cutting Tool Length)
L
L
L 1
L 1
Adjusting Screw (Ordered Separately)
Adjusting Screw (Ordered Separately)
H
H
Adjusting Amount
Adjusting Amount
Fig. 1
K
Fig. 2
Adjustment
Catalog Number
Weight (lbs.)
Fig.
ød
øD øD 1
L
L 1
K
H
Collet
x=50mm x=100mm
BBT30-NBS8-75NRA
.5-8mm
1 2 1
.984 1.772 2.95 1.10
— .91-1.66
20μm 31μm 1.5 18μm 27μm 3.1 22μm 33μm 2.9 18μm 27μm 3.5 25μm 34μm 4.2 17μm 25μm 5.5 21μm 29μm 6.0 19μm 28μm 9.3 24μm 33μm 9.7 30μm 39μm 9.9 17μm 25μm 10.4 22μm 30μm 11.0
NBC8- o
-NBS13-110NRA
2.5-13mm
1.378 2.283 4.33 1.34 1.38
1.61-2.36 NBC13- o
BBT40-NBS8-90NRA
.5-8mm
.984 1.772 3.54 1.46
— .91-1.65
NBC8- o
-NBS13-90NRA
3.54 1.34 5.32 3.11
2.5-13mm
1
1.378 2.283
— 1.61-2.36 NBC13- o
-135NRA
-NBS20-120NRA
4.72 1.77 1.38 5.91 2.56 1.77
2.5-20mm
2
1.811 2.756
1.89-2.56 NBC20- o
-150NRA
BBT50-NBS13-105NRA
4.13 1.50 5.32 2.68 6.50 3.86 4.72 1.89 5.91 3.07
-135NRA -165NRA
2.5-13mm
1
1.378 2.283
— 1.61-2.36 NBC13- o
-NBS20-120NRA
2.5-20mm
1
1.811 2.756
— 1.89-2.56 NBC20- o
-150NRA
• Collet, wrench and adjusting screw must be ordered separately • “H” indicates the adjustment length with an adjusting screw • BCV available upon request
Runout Adjustment Amount The adjustment amount depends on the length of the holder and the tool projection length. The maximum adjustment amount possible for 50mm and 100mm tool projection lengths is listed in the table. The maximum adjustment amount is a reference figure available when the Adjustment Screw is tightened with the listed allowable torque. Allowable Torque for Adjusting Screw
Wrench (Optional)
Allowable Torque (N-m)
NEW BABY CHUCK
Adjusting Amount
NBS8-NRA NBS13-NRA NBS20-NRA
CK-T2.5
3
x=50mm (Cutting Tool Length) x=100mm (Cutting Tool Length)
CK-T3
6
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